%0 Journal Article %A R. I. Agabekov %T A boundary value problem for a three-dimensional analogue of the A.\,V.~Bicadze system %J Doklady Akademii Nauk %D 1980 %P 265-267 %V 252 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_252_2_a0/ %G ru %F DAN_1980_252_2_a0